Improved damper



J. G. JENNINGS.

Damper.

No.- 45,045. Patented Nov. 15. 1864.

UNITED STATES PATENT OFFICE.

J. G. JENNINGS, OF CLEVELAND, OHIO.

IMPROVED DAM PEP Specification forming part of Letters Patent No.@531145, dated November 15, 1864.

To all whom it may concern Be it known that I, J G. JENNINGS, ofCleveland, in the county of Ouyahoga and State of Ohio, have invented anImproved Oombined Chimney-Damper and Shut-Off for Fire-Places; and 1 dohereby declare that the following is a full and complete description ofthe construction and operation of the same, reference being had to theaccompanying drawings, maki g a part of this specification, in whichFigure l is a front view of theZmantel-piece, chimney, and fire-place,of which Fig. 2 isa vertical section in the direction of the line a: win Fig. 1; and Fig. 3, a detached view showing the damper as hung insideof the chimney.

Like letters of reference denote like parts in the views.

The nature of my improvement relates to arranging a damper in a chimneythat can be opened or closed more or less, shutting off the draft, toprevent heat produced from the grate from passing up into the chimneythat otherwise would, and also by closing the same to prevent soot anddirt from the chimney from falling or being blown down into the room,which is so often the case, thereby soiling and injuring the carpets andfurniture.

In the drawings, A represents the mantelpiece, A the chimney, B thefire-place for the grate, and O the damper or door arranged to closeover the flue 0, leading from the fireplace into the chimney, beinghinged at the lower side to the inside of the chimney at each end, asshown at a in Figs. 2 and 3. The damper, when closed, covers the entireopening, but it can readily be opened more or less,

increasing or decreasing the draft, as may be desired.

The arrangement of devices for adjusting the damper consists of a screw,E, passing through the arm F, secured to the jambs of the fire-place andextending to the arm, the thread of the screw being in the end of thearm D, which is hinged to the lugs 12, secured to the damper, by meansof which the screw is adjusted to the position of the damper. This screwcan be turned, opening or closing the damper, by means of a handleplaced on the end 6, a washer, f, being on the screw each side of thearm F, preventing the screw from slipping either way, thereby causingthe damper to open or close up the throat, as may be required or, inplace of a handle for turning the screw, a thumb'screw may be used, asshown at H, Fig. 1.

There is an opening, m, through the back part of the fire-place into thechimney, as represented, to remove the soot and ashes that may collectthere, a door or gate, m, covering the opening. Without an opening forthis purpose the chimney would get filled up after a while, and thedamper could not be operated.

WVhat I claim as my improvement, and desire to secure by Letters Patent,is

The hinged damper or door 0, screw E, and arm D, jointed to the lug b ofthe damper, in combination with the fireplace chimney, when arranged asand for the purpose described.

JNO. G. JENNINGS.

Witnesses W. H. BURRIDGE, O. G. lllORGAN.

